plaese help me?????

[aljori]

Hi...
Could anyone help me to understand recursion, I don't understand the concept of it and how it does work????
I have exam tommorow,

[it career]

int fact(int n)
{
if(n <=1) return 1;
return(n*fac(n-1));
}

fac(5) will 5*fac(4) , fac(4) will call 4*fac(3) ...
fac(1) will return 1; so it bottom up, same function is called with different argument in different stack space.

[aljori]

Thanks